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Elastography can effectively decrease the number of fine-needle aspiration biopsies in patients with calcified

Min-Hee Kim1, Si Luo2, Sun Hee Ko1

  • 1Division of Endocrinology and Metabolism, Department of Internal Medicine, Catholic University of Korea, Seoul, Korea.

Ultrasound in Medicine & Biology
|July 16, 2014
PubMed
Summary
This summary is machine-generated.

Elastography shows promise in distinguishing cancerous from benign calcified thyroid nodules, potentially reducing unnecessary fine-needle aspiration biopsies. This advanced ultrasound technique improves diagnostic accuracy for challenging calcified nodules.

Keywords:
CalcificationElastographyFine-needle aspirationThyroid nodule

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Area of Science:

  • Radiology
  • Oncology
  • Endocrinology

Background:

  • Calcification in thyroid nodules complicates non-invasive differentiation using standard ultrasound.
  • Distinguishing benign from malignant calcified thyroid nodules is clinically significant.

Purpose of the Study:

  • To assess the effectiveness of ultrasound elastography in differentiating calcified thyroid nodules.
  • To evaluate if elastography can improve diagnostic accuracy compared to B-mode ultrasound.

Main Methods:

  • Retrospective analysis of 196 calcified thyroid nodules from 165 patients who underwent both B-mode ultrasound and elastography.
  • Evaluation of elastography performance metrics (sensitivity, specificity, PPV, NPV) for malignancy detection.

Main Results:

  • Elastography demonstrated 95% sensitivity and 95.8% negative predictive value in detecting malignancy among calcified nodules.
  • Elastography correctly diagnosed 23 of 45 benign calcified nodules, significantly outperforming B-mode ultrasound (4 of 45).

Conclusions:

  • Ultrasound elastography offers a valuable tool for improving the differentiation of calcified thyroid nodules.
  • Elastography may help reduce the need for fine-needle aspiration biopsies in cases of calcified thyroid nodules.